org.geomajas.geometry

Interface CrsTransform

All Superinterfaces:

MathTransform

@Api(allMethods=true)
public interface CrsTransform
extends MathTransform

Extension of a MathTransform which allows getting the source and target CRSs and a Geometry with the transformable area.

Since:

1.8.0

Author:

Joachim Van der Auwera

Method Summary

Methods

Modifier and Type	Method and Description
String	getId() Get id or code for this CrsTransform.
Crs	getSource() Source Crs for transformation.
Crs	getTarget() Target Crs for transformation.
org.geomajas.geometry.Bbox	getTransformableBbox() Bbox of the area which can be transformed using this transformation.
com.vividsolutions.jts.geom.Envelope	getTransformableEnvelope() Envelope of the area which can be transformed using this transformation.
com.vividsolutions.jts.geom.Geometry	getTransformableGeometry() Geometry of the area which can be transformed using this transformation.
boolean	isTransforming() Indicates that this transform actually changes something.

Methods inherited from interface org.opengis.referencing.operation.MathTransform

derivative, getSourceDimensions, getTargetDimensions, inverse, isIdentity, toWKT, transform, transform, transform, transform, transform

Method Detail

getId

String getId()

Get id or code for this CrsTransform. For example "EPSG:4326->EPSG:900913".

Returns:

crs id

getSource

Crs getSource()

Source Crs for transformation.

Returns:

source crs

getTarget

Crs getTarget()

Target Crs for transformation.

Returns:

target crs

getTransformableGeometry

com.vividsolutions.jts.geom.Geometry getTransformableGeometry()

Geometry of the area which can be transformed using this transformation.

Returns:

transformable area (in source crs)

getTransformableEnvelope

com.vividsolutions.jts.geom.Envelope getTransformableEnvelope()

Envelope of the area which can be transformed using this transformation.

Returns:

transformable area (in source crs)

getTransformableBbox

org.geomajas.geometry.Bbox getTransformableBbox()

Bbox of the area which can be transformed using this transformation.

Returns:

transformable area (in source crs)

isTransforming

boolean isTransforming()

Indicates that this transform actually changes something.

transforming = !(getSource().equals(getTarget()))

When isTransforming is false then the underlying MathTransform transforms nothing.

Returns:

true when the transform actually does something, false otherwise

Since:

1.9.0